package chapter4.Example16;
class Animal{
    public void shout(){
        System.out.println("喵喵喵.....");
    }
}
class Dog extends Animal {
    public void shout() {
        System.out.println("汪汪汪.....");
    }

    public void eat() {
        System.out.println("吃骨头....");
    }
}
public class Example16 {
    public static void main(String[] args) {

        Animal an = new Dog();
        Dog dog = new Dog();
        dog.shout();
        dog.eat();
    }
}
